bicycle helmet 1.In-Mold,PC SHELL,Aerodynamic shell design 2.HIGH density EPS 3.Quick release buckle 4.CERT.:CPSC/CE bicycle helmet1.The shell: In-Mold,PC SHELL,Aerodynamic shell design2.Buffer: HIGH density EPS, have good absorption of crash energy3.The Inner layer : Easily removable liner and cheek pads for washable4.The Belt: Can adjustive system.5.Quick release buckle6.Homologation:CPSC7.Size ...